Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4914190 | Tricyanovinyl-N,N-disubstituted anilines as disperse dyes | Peter Liechti | 1990-04-03 |
| 4544373 | 2,4-Dinitro-2'-acylamino-4'-dialkylamino-5'-alkoxy-alkyleneoxy-1, 1'-azobezene dyes | Peter Aeschlimann | 1985-10-01 |
| 4212642 | Transfer printing dyes | Urs Karlen | 1980-07-15 |